import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue' 
import Home from '../components/Home.vue'
import Welcome from '../components/welcome.vue'
import users from '../components/user/users.vue'
import rights from '../components/power/rights.vue'
import roles from '../components/power/roles.vue'
import cate from '../components/goods/cate.vue'
import params from '../components/goods/params.vue'
import GoodList from '../components/goods/list.vue'
import Add from '../components/goods/add.vue'
import order from '../components/order/order.vue'
import Report from '../components/report/report.vue'
Vue.use(VueRouter)

const routes = [
 {path:'/',redirect:'/login'},
 {path:'/login',component:Login},
 {path:'/home',component:Home,redirect:'/welcome',
 children:[
   {path:'/welcome',component:Welcome},
   {path:'/users',component:users},
   {path:'/rights',component:rights},
   {path:'/roles',component:roles},
   {path:'/categories',component:cate},
   {path:'/params',component:params},
   {path:'/goods',component:GoodList},
   {path:'/goods/add',component:Add},
   {path:'/orders',component:order},
   {path:'/reports',component:Report}
   
 ]
 }
]

const router = new VueRouter({
  routes
})
//挂载路由导航首位
router.beforeEach((to,from,next)=>{
  //to将要访问的路径
  //from代表从哪个路径跳转而来
  //next是一个函数，表示放行，next('/login') 强制跳转
  if(to.path ==='/login') return next();
  //获取token
  const tokenStr= window.sessionStorage.getItem('token');
  if(!tokenStr) return next('/login');
  next()
})
export default router




